ICYMI: IAB Europe's 383-question guide finally maps who owes what to whom in ad tech: IAB Europe's Programmatic Working Group released an updated supply chain transparency guide on April 9 with 383 questions across 11 nodes and 39 edges. https://ppc.land/iab-europes-383-question-guide-finally-maps-who-owes-what-to-whom-in-ad-tech/ #AdTech #ProgrammaticAdvertising #SupplyChainTransparency #IABEurope #DigitalMarketing